Pre V1.3

added options like:

• added transaction (ACID compliance)
• added data integrity constrains
• added proper indexing for performance
• added relationships between tables
• added concurrency control (multiple users writing simultaneously)
• added data validation
• added backup/recovery mechanisms
• added foreign keys , constrains for Data Integrity
• added Optimized queries , indexes for performance
• added Transaction locking for Concurrency
• added proper joins for relationships
• added handles 1000s of records for Scalability
• added Flask-Migrate for Migrations